Ore-car.



PATENTED MAR, l0, 1908,

C. L. PENNELL.

@RB GAR. APPLIOATION FILED 1350.7. 1907.

2 SHEETS-SEEET PATENTED MAR. l0, 1908. G. L. PENNELL.

ORE CAR= APPLIoAToN FILED DEU. 7. 19o? 2 SHEETS-SHEET 2.

mmm/EVS.,

ln Figs. l and 3 o and fw represent the spouts o t two hoppers of the usual construction which are provided'with gates or doors a* and y respectively which are pivotally secured to the hoppers so that they may be swung up in order to open the hoppers. A'llhe doors are preferably provided with ears or projections fc and-y.

The operation of the car is as follows. When it is desired to fill the car from the bins o and fw the car is run between the bins so that the free ends of the levers are beneath the projections on the doors of the bins. Now if it is desired to open the door y of the bin w the valve 26 is turned so as to permit the compressed air from the tank 7 to pass through the pipe 35 and the tube 36 into the cylinder 13 above the piston l5 which forces down thepiston thereby elevating the 'free end of the lever' 40 and bring,

ing the roller on the end thereof in contact with the projections y on the door y thereby raising the door, as shown in Fig. 3. When a suiiicient quantity otmaterial has been withdrawn from the bin w the valve 26 is operated so as to allow the compressed air from the tank 7to pass through the pipe 33 and the tube 84 and enter the cylinder 13 below the piston 15 thereby shoving up the piston and lowering the free end oi the lever el) which allows the door w to close by its own weight. 0r if it is desired to open the I l,bin fu the valve 25 is operated so as to allow the compressed air from the tank 7 to pass through the pipe 31 andthe ilexible tube 32 into the cylinder l2 above the piston 14 thereby forcing the piston down in the cylinder l2 and consequently raising the lfree end of the lever 39 which will come in contact with the projection :v on the door :c and lift the door and in like manner when it is desired to close the door v the valve 25 is operated so as to allow the compressed air from the tank 7 to pass through the pipe 29 and the tube 30 and enter the cylinder I2 be neath the piston lll thereby Iforcing up the piston 14 and consequently lowering the free end of the lever 39 permittin the door ze to close by its own weight. T ie pivotal support of the cylinders l2 and 13 permit thenjr to rock back and forth, thereby aocommodating themselves to the movements of the ends of the levers, which of course describe 'an are of a circle as they move up and down.

What l claim is,-

l. in a device for operating doors of hopers the combination with a car of a c linder i l) 7 mounted on said ear, a piston arranged in said cylinder and provided with a piston rod which. extends through one end ol said cylinder7 means for actuating said piston in said seines v cylinder and means for forming an operative connection between said piston rod and the door of a hopper when. the car is beneath the hopper so that the movement of said piston rod will open the door of said hopper.

2. ln a device for operating doors of hoppers, the combination witha car of a cylinder pivotally mounted on said car, a piston arranged in said cylinder and provided with a piston rod which projects beyond one end of said cylinder, means for actuating said piston in said cylinder and means for forming an operative connection between said piston rod and the door of a hopper when the car is under said hopper so'that the movement of said piston rou will open. the door thereof.

3. ln a device for operating the doors of hoppers, the combination with a car of a tank for holding a i'luid under pressure mounted on said car, a cylinder pivotally mounted on said car, a iston arranged in said cylinder and provided with a piston rod, pines connecting the upper and lower ends of said cylinder with said tank and a valve controlling the passage oi the fluid' ed on said car, pistons arranged in said' cylinders and provided with piston rods, pipes connecting the upper and lower ends of sald cylinders with said tank, valves for controlling the passage of said 'iiuid through said pipes, a pair ol? levers fulcrumed on said car and operatively connected with said piston rods and means for causing said levers to engage with/the doors ofthe hoppers when the car 1s under the hoppers.

5. In a device for operating the doors of hoppers, the combination with a car of a tank for holding fluid under pressure ar ranged on said car, a pair of cylinders pivotally mounted on said car, pistons arranged in said cylinders and provided with piston rods, pipes connecting the upper and lower ends of said cylinders with said tank, valves for controlling the assage of fluid through said pipes, a pair of evers fulcrumed on said' car and operatively connected with said iston rods and rollers arranged on the ends -of said levers, substantially as described and for the purpose set forth.

' ln testimony whereof, i sign the foregoing speciication, in thefpresence of two witmesses. 

